Tuesday, September 25, 2012

Assignment 3 One Light



Group Members: Maggie, Charles, Amy

For these portraits of Charles I used the single bulb with no diffusion for both images. On the top "normal" portrait I used two flags on the light positioned above the subject's ride side, closer to the camera to create a strip of light and a gold reflector to bounce back a warm gold tone back into the shadows. For the "opposite" portrait I used a bare bulb light about 4 feet away, eye level on the subject's right side, and a matte silver reflector to bounce some cold metalic colored light into the shadow created by the falloff. I also had a bounce card in the subject's lap to fill in some of the shadows, and a flag on the left, bottom side of the light to throw the background into darkness.

The laws of light come into play in the first image in the following ways:
1. Light traveled in a straight line through the slit created by the two flags.
2. The angle of incidence of the beam of light was able to reflect the light back into the subject at the same angle off of the gold reflector.
3. The inverse square law was at play because the light became less harsh when I raised it higher above and moved it slightly away from the subject.

The laws of light came into play in the second image in the following ways:
1. The beams of light traveled in a straight line towards the subject (although now the spread of the coverage of the light was much greater because the beams were coming from all directions from the uncovered bulb) which hit him on his right side, throwing half of his face into shadow.
2. The angle of incidence allowed me to reflect light from the bounce and the reflector back towards the subject at the same angle.
3. The inverse square law was at play when I had to move the light back after the first few shots due to the light being too intense when it was so close. The distance made the light lose a little bit of power in the picture. 

Saturday, September 8, 2012

Lesson 1 Inverse Square Law


Due to working in 110, our numbers for exposures were slightly affected by not having the black backdrops to prevent bounce from the walls and ceiling.

Exposure values for the different gray card set ups are as follows:

First post

Yay!